EP 0450444 A1 19911009 - Improving operation life of on-line boiling water reactors.
Title (en)
Improving operation life of on-line boiling water reactors.
Title (de)
Verlängerung der Einsatzzeit eines Siedewasserreaktors in Betrieb.
Title (fr)
Méthode d'allongement de la durée de vie des réacteurs à eau bouillante en service.
Publication
Application
Priority
US 50272190 A 19900402
Abstract (en)
A method of extending the life of components of in service nuclear reactors or components of existing reactors is taught. The method involves forming a deposit on the surface coatings of metallic elements of the nuclear containment, as well as on the surfaces of encrusted internal components which are exposed to high-temperature, high-pressure water and steam. The deposit formed is a deposit of at least one member of the platinum group of metals. The deposit is formed by electroless deposition. In operation, this deposit facilitates the combination of hydrogen and oxygen to form water and thereby aids in reducing the electrochemical corrosion potential of the system to values below a critical potential that prevents stress corrosion cracking. <IMAGE>
IPC 1-7
IPC 8 full level
C02F 1/20 (2006.01); C23F 15/00 (2006.01); G21C 13/087 (2006.01); G21C 17/022 (2006.01); G21D 1/00 (2006.01); G21D 3/08 (2006.01)
CPC (source: EP US)
C02F 1/20 (2013.01 - EP US); G21C 13/087 (2013.01 - EP US); G21C 17/0225 (2013.01 - EP US); Y02E 30/30 (2013.01 - EP US)
Citation (search report)
- [A] US 4842811 A 19890627 - DESILVA SUNIL G [US]
- [A] EP 0145262 A2 19850619 - WESTINGHOUSE ELECTRIC CORP [US]
- [A] DE 1210496 B 19660210 - KELLER & KNAPPICH GMBH
- JOURNAL OF VACUUM SCIENCE & TECHNOLOGY/SECTION A, vol. 5, no. 4, July/August 1987, Pages 2701-2705, Woodbury, NY, US; T.V. RAO et al.: "Protective coatings for radiation control in boiling water nuclear power reactors"
Designated contracting state (EPC)
CH DE ES IT LI SE
DOCDB simple family (publication)
EP 0450444 A1 19911009; EP 0450444 B1 19941221; DE 69106022 D1 19950202; DE 69106022 T2 19950524; ES 2066250 T3 19950301; JP H04223299 A 19920813; US 5130081 A 19920714
DOCDB simple family (application)
EP 91104645 A 19910325; DE 69106022 T 19910325; ES 91104645 T 19910325; JP 8292391 A 19910325; US 50272190 A 19900402